Multiplex communications – Communication over free space – Combining or distributing information via time channels
Patent
1997-02-07
1999-06-15
Cuchlinski, Jr., William A.
Multiplex communications
Communication over free space
Combining or distributing information via time channels
370324, 370516, 370517, 370519, 375355, 375356, H04L 700
Patent
active
059128860
ABSTRACT:
A mobile communication system is capable of establishing mutual synchronization of radio communication channels among a plurality of radio base stations. A synchronization timing control center is included in a wired telephone network as a terminal equipment of the wired telephone network. Each radio base station in the mobile communication network makes a connection to the synchronization timing control center by way of a mobile switching center, for establishing frame synchronization. Each radio base station measures a value of transmission delay between the radio base station and the synchronization timing control center, and then receives a frame signal as a reference signal from the synchronization timing control center. The formal frame signal to be used by each radio base station is reproduced by compensating the received frame signal by the transmission delay value which varies for each radio base station. Once the frame signal has been established, the signal is held by the clock timing of the network synchronization circuit in each radio base station.
REFERENCES:
patent: 5293380 (1994-03-01), Kondo
patent: 5473668 (1995-12-01), Nakahara
Sugawara Koji
Takahashi Hideaki
Beaulieu Yanel
Cuchlinski Jr. William A.
NEC Corporation
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